Nissan SA terrible warrantee service

Unbelievable poor after sales and warrantee repair service. My car has a miner exhaust manifold sensor problem. It was bought with a 5 year or 150 000kms service warrantee. My car was towed to Queenstown and it has been a week. No feedback, the problem changes everyday and the parts are out of stock as NIssan is WITHDRAWING out of SA soon. The now stuck me with a bill off R22000 as the warrantee was only 3 years but the purchase agreement stated otherwise. My car has only got 40 000 on the clock with full service history. They do not follow up or came back to you the entire floor is full of cars for repairs with 1 mechanic?????? Never in my life ever again a Nissan! Queens town is a nightmare. Trust me stay away.